Patents by Inventor Xavier Couillens

Xavier Couillens has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8710126
    Abstract: Flame-proofed thermoplastic compositions include organophosphorus compounds as flame retardants; thermoplastic articles shaped therefrom do not experience deterioration of the appearance of the surfaces thereof by corrosion or deposition.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: April 29, 2014
    Assignee: Rhodia Operations
    Inventors: Silvia Angeli, Xavier Couillens, Michelangelo Amorese
  • Publication number: 20120276391
    Abstract: Fire-retardant polyamide cast items including an intumescent coating are described. The case items can have excellent fire-retardant properties and can include at least one fire-retardant system in the polyamide matrix. The items can also have an intumescent coating on at least one surface.
    Type: Application
    Filed: October 15, 2010
    Publication date: November 1, 2012
    Applicant: RHODIA OPERATIONS
    Inventors: Helene Gallou, Maude Jimenez, Charafeddine Jama, Sophie Duquesne, Rene Delobel, Xavier Couillens, Serge Bourbigot
  • Publication number: 20100216918
    Abstract: Flame-proofed thermoplastic compositions include organophosphorus compounds as flame retardants; thermoplastic articles shaped therefrom do not experience deterioration of the appearance of the surfaces thereof by corrosion or deposition.
    Type: Application
    Filed: June 17, 2008
    Publication date: August 26, 2010
    Inventors: Silvia Angeli, Xavier Couillens, Michelangelo Amorese
  • Publication number: 20100137479
    Abstract: Flame-retardant polyamide compositions that can be converted into molded shaped articles contain melamine cyanate and a novolac resin; such molded shaped articles are particularly useful in the field of electric or electronic connector technology, e.g., as circuit-breakers, switches or connectors.
    Type: Application
    Filed: November 5, 2007
    Publication date: June 3, 2010
    Inventors: Xavier Couillens, Michelangelo Amorese, Caroll Vergelati
  • Publication number: 20080105857
    Abstract: The present invention relates to a flame-retardant system for polymers and to polymer-based flame-retarded compositions. It relates more particularly to a flame-retardant system comprising phosphorus-comprising compounds as flame-retardant agent. The invention provides a flame-retardant system, in particular for polymers and polymer-based compositions. This flame-retardant system comprises, as flame-retardant agent, at least one compound belonging to the family of the esters and salts of phosphoric, phosphinic and phosphonic acids and at least one other compound which stabilizes the flame-retardant agent.
    Type: Application
    Filed: December 17, 2004
    Publication date: May 8, 2008
    Inventors: Xavier Couillens, Lorraine Leite, Jean-Emile Zanetto
  • Publication number: 20070299171
    Abstract: The invention relates to a fireproof thermoplastic composition comprising a specific fireproofing system which is based on a phosphinic acid salt and melamine derivatives. The inventive composition is useful, in particular for producing articles used for electric or electronic connections.
    Type: Application
    Filed: December 17, 2004
    Publication date: December 27, 2007
    Inventors: Xavier Couillens, Michaelangelo Amorese